<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="发送者Id" prop="senderId">
        <el-input
          v-model="queryParams.senderId"
          placeholder="请输入发送者Id"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="接收者Id" prop="toId">
        <el-input
          v-model="queryParams.toId"
          placeholder="请输入接收者Id"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['message:message:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['message:message:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['message:message:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['message:message:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="messageList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="发送者Id" align="center" prop="senderId"/>
      <el-table-column label="接收者Id" align="center" prop="toId"/>
      <el-table-column label="时间" align="center" prop="time" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.time, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="drawer = true;getUser(scope.row.senderId,scope.row.toId)"
          >详情
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改消息记录对话框 -->
    <el-drawer
      title="聊天记录"
      :visible.sync="drawer"
      :direction="direction"
    >
      <div>
        <el-container>
          <el-main>
            <div v-for="message in messageLists" :key="message.id" class="chat-message" id="chatHistory">
              <!-- 聊天记录内容 -->
              <el-row>
                <img v-if="String(currentUser.userId) === message.senderId" :src="currentUser.avatar"
                     class="avatar"/>
                <img v-else :src="friend.avatar"
                     class="avatar"/>
                <div style="margin-left: 20px;">
                  <div class="sender" v-if="String(currentUser.userId) === message.senderId">{{ currentUser.nickName }}</div>
                  <div class="sender" v-else>{{ friend.nickName }}</div>
                  <div v-if="message.textType === 'IMAGE'">
                    <img :src="message.text" class="content-image">
                  </div>
                  <div v-if="message.textType === 'TEXT'" class="content">
                    {{ message.text }}
                  </div>
                </div>
                <div class="time">{{ message.time }}</div>
              </el-row>
            </div>
          </el-main>
        </el-container>
      </div>
    </el-drawer>
  </div>
</template>

<script>
import {
  listMessage,
  getMessage,
  delMessage,
  addMessage,
  updateMessage,
  getUserById,
  selectMessageBySenderIdAndToId
} from "@/api/message/message";

export default {
  name: "Message",
  dicts: ['message_text_status', 'message_type', 'message_text_type'],
  data() {
    return {
      drawer: false,
      direction: 'rtl',
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 消息记录表格数据
      messageList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        senderId: null,
        unread: null,
        textType: null
      },
      oneQueryParams: {
        senderId: null,
        toId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {},
      currentUser: "",
      friend: "",
      messageLists: []
    };
  },
  created() {
    this.getList();
  },
  methods: {
    getUser(senderId, toId) {
      getUserById(senderId).then(resp => {
        this.friend = resp.data
      })
      getUserById(toId).then(resp => {
        this.currentUser = resp.data
      })
      this.oneQueryParams.senderId = senderId
      this.oneQueryParams.toId = toId
      selectMessageBySenderIdAndToId(this.oneQueryParams).then(response => {
        this.messageLists = response;
      });
    },
    /** 查询消息记录列表 */
    getList() {
      this.loading = true;
      listMessage(this.queryParams).then(response => {
        this.messageList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        senderId: null,
        toId: null,
        text: null,
        time: null,
        type: null,
        unread: null,
        textType: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加消息记录";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getMessage(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改消息记录";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateMessage(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addMessage(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除消息记录编号为"' + ids + '"的数据项？').then(function () {
        return delMessage(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('message/message/export', {
        ...this.queryParams
      }, `message_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
<style>
.chat-message {
  margin-bottom: 20px;
}

.chat-message .sender {
  font-weight: bold;
  line-height: 30px;
  margin-left: 20px;
}

.chat-message .time {
  color: #999;
  font-size: 12px;
  float: right;
}

 .content {
  margin-top: 10px;
  margin-left: 20px;
}

.chat-message .avatar {
  height: 30px;
  float: left;
}

.content-image {
  display: block;
  cursor: pointer;
  height: 80px;
  width: 80px;
}
</style>
